In 2019 I was setting up my new computer at my new job, and the Ubuntu installer had btrfs as an option. Figuring that it had been ages since the last time I'd heard about btrfs issues, I opted for that.

A week later, the power failed in the office, and my filesystem got corrupted. In the middle of repairing, the power dipped again, and my entire fs was unrecoverable after that. I managed to get the data off by booting off a separate drive and running a command to extract everything, but it would never mount no matter what I did.

I've never had an issue with ext4, xfs, or zfs no matter how much I've abused them over the past 10+ years, but if losing power twice can wipe out my filesystem then no thanks, I'm out.

(Plus: non-recursive snapshots? No thanks.)